h8300-div-delay-slot.c: New test.

* gcc.dg/h8300-div-delay-slot.c: New test.

From-SVN: r157340
This commit is contained in:
Kaushik Phatak 2010-03-10 15:48:52 +00:00 committed by Jeff Law
parent 6edd81980f
commit 8bb025f55a
2 changed files with 23 additions and 0 deletions

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2010-03-10 Kaushik Phatak <kaushik.phatak@kpitcummins.com>
* gcc.dg/h8300-div-delay-slot.c: New test.
2010-03-10 Alexander Monakov <amonakov@ispras.ru> 2010-03-10 Alexander Monakov <amonakov@ispras.ru>
PR tree-optimization/43236 PR tree-optimization/43236

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/* Make sure that the H8 backend does not generate a div
instruction in a delay slot. */
/* { dg-options "-Os" } */
/* { dg-skip-if "" { "h8300*-*-*" } "*" "-msx*" } */
/* { dg-final { scan-assembler-not "\tbra/s\t.*\n\tdiv*" } } */
extern volatile unsigned long timer_ticks;
#define timer_ms_elapsed(ticks) (((unsigned long)(timer_ticks-ticks))/10)
unsigned long ticks;
unsigned tst_read( unsigned char idx )
{
switch( idx )
{
case 0x62: return timer_ms_elapsed(ticks);
case 0x61: return timer_ticks;
default: return 0;
}
}